Harsh Dev Singh is the Jammu and Kashmir National Panthers Party (JKNPP) president and a former Education Minister of Jammu and Kashmir in the successive governments of Mufti Mohammad Sayeed and Ghulam Nabi Azad from 2002 to 2008. Harsh Dev Singh won three consecutive Assembly elections from the Ramnagar seat in 1996, 2002, and 2008. In the 1996 Jammu and Kashmir Assembly polls, Harsh Dev Singh won the constituency by defeating Bahujan Samaj Party's (BSP) Khalil-Allah Qazi with a margin of 601 votes. He retained the seat in 2002 by defeating Khalil-Allah Qazi again by 16,484 votes. In the 2008 polls, Singh won the seat yet again by defeating BSP candidate Vinod Khajuria with a margin of 12,146 votes. However, he was defeated by the Bharatiya Janata Party's (BJP) Ranbir Singh Pathania in the 2014 Assembly elections by 17,420 votes. Singh is contesting from the Chenani constituency in the 2024 Jammu and Kashmir Assembly Elections with support from the JKNC-Congress alliance against Jammu and Kashmir Peoples Democratic Party's (JKPDP) Mohd Vaseem, BJP's Balwant Singh Mankotia, and BSP's Sham Lal Dogra. He briefly joined the Arvind Kejriwal-led Aam Aadmi Party (AAP) in 2022 and became its chairman in Jammu and Kashmir but resigned from it in 2023 and rejoined the JKNPP.